The laundry bag does not absorb moisture or odours from the laundry because it is made of polyester. Easy to move – castors included. Easy to keep clean since you can remove the laundry bag and wash it in the washing machine. You can put GRUNDTAL laundry bag with castors together with GRUNDTAL trolley, as they have the same measurements. http://www.ikea.com/aa/en/images/products/grundtal-laundry-bag-with-castors-black__0139784_PE299612_S4.JPGGRUNDTAL Laundry bag with castors, stainless steel, blackhttp://www.ikea.com/aa/en/catalog/products/10219300/102.193.00IKEA$49.95